hedden



datati gietenattat @para Letters Patent No. 98,375, dated December 28,1.869.

PHoToGRAPH'Ic-PAPBR.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern.-

Be it known that I, H. llL-HEDDEN, of the city and county of Worcester,and Commonwealth of Massachusetts, have invented certain new and usefulIniprovements in Photograph-Paper; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referenceheilig had to the accompanying drawings, forming a part of thisspccifcation, in which- Figure l represents a perspective view of apiece of my improved photograph-paper, with the upper part ot' itseparated, to illust-rate and show more fully the character ofthe paperas hereafter explained;

Figure 2 represents, upon an enlarged scale, a section of a pieceof myimproved photograph-paper, as hereafter explained; and

Figure 3 represents a sectionof a card, after the picture has been takenon my improved paper, and mounted or pasted upon the card. i

To enable those skilled in the art to which my invention belongs, tomake and use the same, I will proceed to describe it more in detail.

A represents a piece or strip of my improved photograph-paper, which ismade of two strips B B, of card or Bristol-board, composed of fibres offine or hard texture.

The two strips or layers B Bare united to a central piece of paper, a,of a loose pulpy nature.

The paper thus niade is prepared on both sides, the same as if pictureswere to be taken on both sides, whereby the inner layer a, as well asthe insides of the strips or layers B B, are f'ully protected from theaction of both water and the chemicals used or employed in the processof taking the pictures.

After the picture hasy been taken on one side, and preparatory to beingmountedv upon a supporting-card, the two pieces or layers of papel' B Bare torn apart or separated, and which operation can be easily effected,since the loose pulpy fibres, compassing the layer of papers a, yieldquickly when and as soon as the layers B B are drawn apart, as indicatedin figs. 1 and 2 of the drawings.

It will be observed,'by reference to the drawings, that a part of theloose, fibrous material, composing the central layer a, adheres to theinside of each of' the layers or stripsB B, thus furnishing the properand desirable surface for receiving the paste or adhesive substance, bymeans of which the piece of paper or card-board, upon which the pictureis taken, is properly secured to the card O.

The pieces or strips of paper or card-board B, which are separated fromthose upon which the pictures have been taken, as above described, canthen be pasted together apd out up for taking taking small'pictures,similar to those called tin-types, whereby all, or nearly all thepaper-stock can be utilized and saved. Those skilled in the art to whichmy invention'helongs will readily understand and appreciate theimportance and value of ni'y invention.

The pictures taken on my improved paper are those called positivepictures, and the paper or card-board,

as heretofore made and used,l1as been covered with' 'varnish or someother resisting material on the back..

to protect the fibres of the paper from the act-ion of the water andchemicals used during the operation of taking and preparingfthe picture,and artists find it very difcult to paste the paper thus coated upon asupporting-card, in such a manner as' to secure it in such position forany great length of time, in a neat and tasty manner.

Then, again, by the use ofv my paper, the surface upon which the pictureis taken, especially when several picturesare taken upon one sheet ofpaper, is retained in a very uniform and even manner, owing to the factthat the card-board or paper is comparatively quite thick as used duringthe process'of taking the pictures. This last feature, the thicknessofthe paper, which would be objectionable, as reuderig the picture, whenmounted Vupon the card, thick and clumsy, is entirely obviated by theseparation of the paper, as above explained, preparatory to mounting thepicture upon the supporting-card. I am, therefore, able to obtain a moreperfect picture, and at a reduced cost and expense, by the use. of myimproved photographpaper, while, at the same time, all of the objectionsincident to the varnishing or coating of the surface of the paper whichis to rcceive the paste by which the picture is secured to theSupporting card, are obviated.

